EP0827588B1 - Dispositif pour le prelevement de substances gazeuses, de liquides, d'aerosols ou meme de matieres pulverulentes, en vue de leur analyse in situ - Google Patents
Dispositif pour le prelevement de substances gazeuses, de liquides, d'aerosols ou meme de matieres pulverulentes, en vue de leur analyse in situ Download PDFInfo
- Publication number
- EP0827588B1 EP0827588B1 EP96914242A EP96914242A EP0827588B1 EP 0827588 B1 EP0827588 B1 EP 0827588B1 EP 96914242 A EP96914242 A EP 96914242A EP 96914242 A EP96914242 A EP 96914242A EP 0827588 B1 EP0827588 B1 EP 0827588B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sampling
- collector
- wiper
- materials
- tongue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N2001/028—Sampling from a surface, swabbing, vaporising
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
- Y10T436/25875—Gaseous sample or with change of physical state
Definitions
- the present invention relates to a device for removal of gaseous substances, liquids, aerosols or even pulverulent materials, with a view to their analysis in situ in a device for analyzing gas compositions.
- the sampling device comprises a flexible tongue carrying a heating resistance electric used to vaporize the collected substances by the tongue.
- this device necessarily requires operator intervention: the operator must perform samples and then spray the liquid substances removed, so that the vapors produced are sucked in by the device as a gas composition to be analyzed.
- the object of the invention is more particularly to achieve to these results without the help of any operator so that you can use the whole device sample / analysis device like a probe standalone placed on a site to be able to detect instantly the presence of contamination or atmospheric pollution.
- the sampling device comprises a collector having a collecting surface exposed to the atmosphere we want detect possible contamination, an organ of sample coming into contact with said surface collector, over an area of reduced dimensions, means for carrying out a relative displacement between said sampling member and said surface, so that it is swept by said body collection, during at least one sequence of heating means associated with said means sampling to vaporize the contaminating materials possibly collected during of the scanning sequence and a suction nozzle intended to come to connect on the admission orifice of a gas composition analysis apparatus, this nozzle being shaped so as to be able to suck the contaminant vapors produced by heating means.
- the withdrawal device may understand an automation to implement the heating means and the analysis device at the end of the scan sequence.
- composition analysis device gas is a portable and self-contained device for flame spectrophotometric analysis of the type of that which is described in patent FR No. 87 02762 in the name of the Applicant.
- This device comprises a body 1 of elongated shape having, on one side, electrical connection means 2 and, on the other side, a gas suction head 3 that we want to analyze. Its grip is ensured by a handle 4 containing a generator delivering the hydrogen which participates in the combustion of the gas to be analyzed with a view to produce the flame being analyzed spectrographic.
- This appliance uses a burner fitted with a window fitted with a focusing optic in the axis of which are arranged a rotary chopper comprising a plurality of optical filters each corresponding to a element sought, and an optoelectronic cell placed in the optical focus area.
- the electrical signal delivered by the cell is transmitted to an electronic processing circuit allowing determine and display on a display the content of gas in sought after components.
- an electronic processing circuit allowing determine and display on a display the content of gas in sought after components.
- it includes means for trigger an alert and possibly transmit remotely an alarm signal following detection of a sought-after component.
- the intake of the gas to be analyzed (usually air ambient) inside the burner is ensured by means a turbine and an intake duct which leads to the outside by a hole 5 made in the head suction 3.
- the removable sampling device 6 associated with the analysis apparatus 1 is designed so as to come mount, using assembly and fixing means easily disconnected on the suction head 3 of the device.
- a manifold 7 comprising a housing of substantially cylindrical-frustoconical shape with the base 8, which closes the cylindrical part 9, extends obliquely with respect to the general axis of symmetry XX '.
- an assembly part 10 in the form of angle iron, one of the wings of which is provided with a recess 11 through which passes a tip 12 intended to engage in port 5 of the suction head 3.
- the manifold housing 7 contains an electric motor coaxial 15 whose output shaft 20 passes through the small base constituting the top of the part tapered.
- the supply of electric motor 15 is provided by the analysis device 1, thanks to a cable coming to connect on the connection means electric 2.
- the shaft 20 rotates, thanks to a key 21, a drive piece, substantially shaped conical 22 which extends parallel and at a short distance of the frustoconical part 18.
- the dynamic seal between these two parts are then ensured thanks to the use of a O-ring 23 of X-shaped section.
- a coaxial collecting cap 24 with the outer face convex conical constitutes the collecting surface which is intended to be exposed to the atmosphere we want measure contamination.
- this collecting cap 24 comprises, the along one of its generatrices, a groove 25 whose role will be explained below.
- a fastener 26 On the cylindrical side face 9 of the housing is fixed by screwing a fastener 26 having a through hole 27 centered parallel to the axis XX 'of the housing and opening into a region located opposite the suction head 3, when the sample 7 is in the assembled position on the device analysis 1.
- This collector / evaporator 29 includes a ramp of sampling and heating 30 mounted at the end upper section 28 and having, inside a support 31 in the form of a gutter, a broom 32 intended to come to bear on the collecting surface of the cap 24, substantially over the entire length of its generator.
- the support 31 and the brush 32 are oriented so that when the section 28 is engaged in bottom in the hole 27, the support 31 delimits with the collecting surface, a channel in communication with the internal volume of the section 28 and that the brush 32 comes apply to said surface, to retain the elements polluted who may have settled there.
- the brush 32 is in the form a flexible tongue possibly covered with a absorbent layer, and carrying an electrical resistance heating.
- the supply of this electrical resistance is provided by the electrical energy source of the analysis apparatus 1 and is controlled by a switch when the brush 32 is opposite throat 25.
- the lower end of the sleeve 28 is tightly connected to the suction head 5 of the apparatus 1 by means of a T-shaped connection element, 33.
- the device 1 sucks a air flow which successively circulates in the ramp 30, in section 28 and in fitting 33.
- the set made up of the sample 6 mounted on the portable analysis device 1 is placed on the site that we want to monitor, the axis of the motor 15 and the collecting cap 24 being oriented vertically.
- the cap has its oriented convexity upward so as to be exposed to contamination by the elements sought. This contamination can consist for example of a fine mist airborne droplets.
- device 1 triggers a signal alert for example light and / or sound and, possibly the transmission of an alarm message by example over the air.
- the operating cycles can be succeed continuously or discontinuously, according to a pre-established periodicity, possibly adjustable.
- cap 24 shaped conical, has the advantage of allowing the flow of water, in case of rain, as well as solid particles carried by the wind which could alter the device operation 1.
- tubular sleeve 28 and / or the element 33 can be fitted with a damper for connecting the suction head 3 directly into the atmosphere, without going through the ramp 30, so as to be able to alternate analysis phases, the gaseous composition of the ambient air and the phases for detecting the presence of contaminating substances in liquid or solid form suspended in air.
- the collecting surface could have a shape different from that of a conical cap: it could for example be flat and animated with a movement continuous translation (film unfolding) or alternative. It could possibly be cylindrical and be arranged coaxially with the suction head.
- the brush 32 can be designed so as to be able to selectively absorb and therefore concentrate products that we want to highlight. He will be able to for example be coated with silica gel deposited in surface and held by silicone, and be formed by the juxtaposition of several tongue elements.
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Description
- soit une aspiration de l'atmosphère ambiante, de manière à effectuer une analyse de la composition gazeuse de cette atmosphère,
- soit une aspiration des vapeurs engendrées par les moyens de chauffage, pour détecter la présence de matières contaminantes solides ou liquides déposées sur la surface collectrice et collectés par l'organe de prélèvement.
- la rotation de la calotte collectrice 24 sur un tour complet, de manière à ce que la gorge 25 qui se trouvait initialement au droit de la rampe de prélèvement 30 retourne à sa position initiale après avoir effectué une rotation de 360°,
- une phase de chauffage du balai 32, de manière à vaporiser les matières polluantes ou toxiques qui se sont éventuellement déposées sur la surface collectrice et qui ont été recueillies par le balai au cours de la rotation de la calotte 24,
- simultanément à la phase de chauffage, une séquence d'analyse au cours de laquelle l'appareil d'analyse 1 aspire l'atmosphère gazeuse contenue dans la rampe de prélèvement 30, via le manchon 28 et le raccord 33 et procède à l'analyse spectrophotométrique de cette atmosphère gazeuse (éventuellement chargée de vapeurs de matières polluantes ou toxiques recueillies).
- d'éviter que le chauffage effectué au niveau du balai 32 ne puisse détériorer la calotte 24,
- de mieux canaliser vers le tronçon tubulaire 28 le flux d'air aspiré par l'appareil d'analyse 1,
- d'éliminer les particules retenues par le balai 32 lors de la rotation de la calotte 24,
- de nettoyer le balai 32 grâce à l'action de son bord (qui effectue un effet de raclage sur la partie du balai 32 exposée aux souillures).
Claims (10)
- Dispositif de prélèvement in situ de substances gazeuses, de liquides d'aérosols ou même de matières pulvérulentes, ce dispositif étant conçu de manière à pouvoir se connecter sur un appareil d'analyse de compositions gazeuses (1),
caractérisé en ce qu'il comprend un collecteur (7) présentant une surface collectrice (24) exposée à l'atmosphère dont on veut détecter la contamination éventuelle, un organe de prélèvement (30, 31, 32) venant au contact de ladite surface collectrice (24), sur une zone de celle-ci présentant des dimensions réduites, des moyens (15) permettant d'effectuer un déplacement relatif entre ledit organe de prélèvement (30, 31, 32) et ladite surface, de manière à ce que celle-ci soit balayée par ledit organe de prélèvement, au cours d'au moins une séquence de balayage, des moyens de chauffage associés auxdits moyens de prélèvement (30, 31, 32) pour effectuer une vaporisation des matières contaminantes éventuellement collectées au cours de la séquence de balayage et une buse d'aspiration (28) destinée à venir se connecter sur l'orifice d'admission (5) de l'appareil d'analyse (1), cette buse (28) étant conformée de manière à pouvoir aspirer les vapeurs de matières contaminantes produites par les moyens de chauffage. - Dispositif selon la revendication 1,
caractérisé en ce que la surface collectrice (24) est mobile en rotation. - Dispositif selon la revendication 2,
caractérisé en ce que le susdit collecteur comprend une calotte collectrice (24) mobile en rotation et dont la face convexe, de forme conique, constitue la susdite surface collectrice. - Dispositif selon la revendication 3,
caractérisé en ce que la surface collectrice (24) comprend une gorge (25) qui s'étend le long de l'une de ses génératrices. - Dispositif selon l'une des revendications précédentes,
caractérisé en ce que la susdite buse d'aspiration (25) communique avec une rampe de prélèvement (31) en forme de gouttière contenant un balai (32) disposé de manière à venir en appui sur la surface collectrice (24), le long de sa génératrice, ce balai (32) constituant le susdit organe de prélèvement. - Dispositif selon la revendication 5,
caractérisé en ce que le susdit balai (32) se présente sous la forme d'une languette souple portant une résistance électrique chauffante. - Dispositif selon la revendication 6,
caractérisé en ce que la susdite languette est formée par la juxtaposition de plusieurs éléments de languette. - Dispositif selon l'une des revendications 6 et 7,
caractérisé en ce que la susdite languette est recouverte d'une couche absorbante. - Dispositif selon la revendication 8,
caractérisé en ce que le balai (32) est conçu de manière à absorber sélectivement les produits que l'on veut détecter. - Dispositif selon l'une des revendications précédentes,
caractérisé en ce qu'il comprend un registre permettant de connecter l'orifice d'admission (5), soit à l'atmosphère, soit à la susdite buse d'aspiration.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9505320 | 1995-04-28 | ||
| FR9505320A FR2733594B1 (fr) | 1995-04-28 | 1995-04-28 | Dispositif pour le prelevement de substances gazeuses, de liquides, d'aerosols ou meme de matieres pulverulents, en vue de leur analyse in situ |
| PCT/FR1996/000633 WO1996034266A1 (fr) | 1995-04-28 | 1996-04-25 | Dispositif pour le prelevement de substances gazeuses, de liquides, d'aerosols ou meme de matieres pulverulentes, en vue de leur analyse in situ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0827588A1 EP0827588A1 (fr) | 1998-03-11 |
| EP0827588B1 true EP0827588B1 (fr) | 1998-12-23 |
Family
ID=9478684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96914242A Expired - Lifetime EP0827588B1 (fr) | 1995-04-28 | 1996-04-25 | Dispositif pour le prelevement de substances gazeuses, de liquides, d'aerosols ou meme de matieres pulverulentes, en vue de leur analyse in situ |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5904900A (fr) |
| EP (1) | EP0827588B1 (fr) |
| JP (1) | JP3746517B2 (fr) |
| KR (1) | KR100418431B1 (fr) |
| CA (1) | CA2217280C (fr) |
| DE (1) | DE69601227T2 (fr) |
| FR (1) | FR2733594B1 (fr) |
| IL (1) | IL118052A (fr) |
| WO (1) | WO1996034266A1 (fr) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942699A (en) * | 1997-06-12 | 1999-08-24 | R.A.Y. Buechler Ltd. | Method and apparatus for sampling contaminants |
| AU2002253310B2 (en) * | 2001-04-11 | 2006-10-05 | Rapid Biosensor Systems Limited | Biological measurement system |
| US7458374B2 (en) | 2002-05-13 | 2008-12-02 | Alexza Pharmaceuticals, Inc. | Method and apparatus for vaporizing a compound |
| US7585493B2 (en) | 2001-05-24 | 2009-09-08 | Alexza Pharmaceuticals, Inc. | Thin-film drug delivery article and method of use |
| US7645442B2 (en) | 2001-05-24 | 2010-01-12 | Alexza Pharmaceuticals, Inc. | Rapid-heating drug delivery article and method of use |
| US7766013B2 (en) | 2001-06-05 | 2010-08-03 | Alexza Pharmaceuticals, Inc. | Aerosol generating method and device |
| WO2004048934A2 (fr) * | 2002-11-21 | 2004-06-10 | Ada Technologies, Inc. | Procede de desorption, a l'aide d'un stroboscope, de materiaux a haut point d'ebullition |
| US7833802B2 (en) * | 2002-11-21 | 2010-11-16 | Ada Technologies, Inc. | Stroboscopic liberation and methods of use |
| US7913688B2 (en) | 2002-11-27 | 2011-03-29 | Alexza Pharmaceuticals, Inc. | Inhalation device for producing a drug aerosol |
| US7540286B2 (en) | 2004-06-03 | 2009-06-02 | Alexza Pharmaceuticals, Inc. | Multiple dose condensation aerosol devices and methods of forming condensation aerosols |
| US8377711B2 (en) * | 2005-04-04 | 2013-02-19 | Ada Technologies, Inc. | Stroboscopic liberation and methods of use |
| FR2891435B1 (fr) * | 2005-09-23 | 2007-11-09 | Bull Sa Sa | Systeme de maintien en position d'un assemblage a trois parties assurant un effort de compression predetermine sur la partie intermediaire |
| WO2007079118A1 (fr) * | 2005-12-29 | 2007-07-12 | Molex Incorporated | Ensemble de connexion pour un element chauffant comportant des bornes fixees par insertion en force |
| US7299709B1 (en) * | 2006-02-16 | 2007-11-27 | The United States Of America As Represented By The Secretary Of The Army | Aerosol collecting device for a chemical detector |
| US7513781B2 (en) | 2006-12-27 | 2009-04-07 | Molex Incorporated | Heating element connector assembly with insert molded strips |
| WO2008092118A2 (fr) | 2007-01-25 | 2008-07-31 | Ada Technologies, Inc. | Procédés employant une amplification de signaux stroboscopiques et une spectroscopie raman améliorée en surface pour une meilleure détection des substances chimiques à l'état de traces |
| EP2121088B1 (fr) | 2007-03-09 | 2016-07-13 | Alexza Pharmaceuticals, Inc. | Unité chauffante à utiliser dans un dispositif d'administration de médicament |
| US9726653B2 (en) * | 2014-03-26 | 2017-08-08 | Hamilton Sundstrand Corporation | Chemical detector |
| JP6122409B2 (ja) * | 2014-09-09 | 2017-04-26 | 株式会社エス・ティ・ジャパン | 液状物質捕集装置 |
| KR102852740B1 (ko) | 2018-02-02 | 2025-08-29 | 알렉스자 파마스티칼즈, 인크. | 전기적 응축 에어로졸 디바이스 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3120362A1 (de) * | 1980-05-21 | 1982-12-30 | Gerhard Dipl.-Chem. 3500 Kassel Budan | Verfahren und einrichtung zur mengenmessung loeslicher substanzen wie auftausalzen auf einer fahrbahnoberflaeche |
| US4542641A (en) * | 1983-12-07 | 1985-09-24 | Eyler Roger C | Method and means for the detection of chemical agent droplets |
| US4565786A (en) * | 1984-04-11 | 1986-01-21 | Earth Search, Inc. | Method for detecting mercury gas |
| US4569235A (en) * | 1984-04-25 | 1986-02-11 | The United States Of America As Represented By The Secretary Of The Air Force | Portable, sequential air sampler |
| FR2603698B1 (fr) * | 1986-09-05 | 1988-11-10 | Commissariat Energie Atomique | Procede et dispositif pour la mesure de la concentration d'aerosols dans un gaz |
| DE3714294A1 (de) * | 1987-04-29 | 1988-11-10 | Hoechst Ag | Vorrichtung zum transport von teiltemperiertem, streifenfoermigem testgut |
| CA2012030A1 (fr) * | 1990-03-13 | 1991-09-13 | Ludmila L. Danylewych-May | Systeme de manipulation des echantillons pour les analyseurs moleculaires |
| GB9008630D0 (en) * | 1990-04-17 | 1990-06-13 | Graseby Ionics Ltd | Vapouriser |
| CA2060729A1 (fr) * | 1991-03-20 | 1992-09-21 | Stephen E. O'brien | Methode de verification de surfaces pour deceler des composes specifiques |
| US5595709A (en) * | 1992-09-01 | 1997-01-21 | Chromatofast | Instrument for measuring non-methane organic gases in gas samples |
| JP3243079B2 (ja) * | 1993-09-16 | 2002-01-07 | 株式会社日立製作所 | 大気圧昇温ガス脱離装置 |
| US5500369A (en) * | 1993-10-12 | 1996-03-19 | Nch Corporation | Air sampler |
| US5665314A (en) * | 1994-10-11 | 1997-09-09 | Hewlett-Packard Company | Temperature control in a portable analytical instrument |
-
1995
- 1995-04-28 FR FR9505320A patent/FR2733594B1/fr not_active Expired - Fee Related
-
1996
- 1996-04-25 JP JP53222596A patent/JP3746517B2/ja not_active Expired - Lifetime
- 1996-04-25 DE DE69601227T patent/DE69601227T2/de not_active Expired - Lifetime
- 1996-04-25 CA CA002217280A patent/CA2217280C/fr not_active Expired - Lifetime
- 1996-04-25 WO PCT/FR1996/000633 patent/WO1996034266A1/fr not_active Ceased
- 1996-04-25 EP EP96914242A patent/EP0827588B1/fr not_active Expired - Lifetime
- 1996-04-25 KR KR1019970707642A patent/KR100418431B1/ko not_active Expired - Lifetime
- 1996-04-25 US US08/945,482 patent/US5904900A/en not_active Expired - Lifetime
- 1996-04-26 IL IL11805296A patent/IL118052A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IL118052A (en) | 1999-07-14 |
| FR2733594B1 (fr) | 1997-06-06 |
| EP0827588A1 (fr) | 1998-03-11 |
| CA2217280A1 (fr) | 1996-10-31 |
| IL118052A0 (en) | 1996-08-04 |
| JP3746517B2 (ja) | 2006-02-15 |
| US5904900A (en) | 1999-05-18 |
| KR19990008117A (ko) | 1999-01-25 |
| KR100418431B1 (ko) | 2004-06-10 |
| WO1996034266A1 (fr) | 1996-10-31 |
| DE69601227D1 (de) | 1999-02-04 |
| FR2733594A1 (fr) | 1996-10-31 |
| CA2217280C (fr) | 2006-06-13 |
| DE69601227T2 (de) | 1999-06-02 |
| JPH11504116A (ja) | 1999-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
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